<ul id="sideManu" class="nav nav-tabs nav-stacked">
    <li class="subMenu open" *ngFor="let p of parents"><a> {{p.name}}</a>
        <ul>
            <li *ngFor="let c of p.children"><a href="#"><i class="icon-chevron-right"></i>{{c.name}}</a></li>
        </ul>
    </li>
</ul>